At first, some rumors flew about the cause of this tragedy. Now the jet is suspected to be attacked by a missile fired by Russian separatists. Ukraine's security agency reported that a phone call suggesting the announcement of committing intercepted.

Both Russia and Ukraine are blaming each other. President Vladimir Putin denied the involvement of Russia in this accident and claimed that Ukraine government was responsible for this case. Barack Obama and the United Nation are willing to participate in the investigation.

To be honest, I hardly understand the intention of the attackers. If their purpose was to show the force or threatening, there might have been a criminal declaration. Some people hypothesize that the attackers shot the plane by an accident, misidentified as Putin was on the plane. But this is no more than a rumor.

It is the second disaster Malaysian Airline encountered, followed by the missing case unsolved. There are lots of anxiety around this.